Linux O.S. ( 20 Sep. 2012 )

To check any command’s full manual man commande name

To check system’s memory free

To check free disk space in Kb df

To check free disk space in Mb df –m

To check free disk space in Gb df -h

To see all mount points df

To check memory in Mb free –m

To check memory in Gb free -g

To check any command’s full manual man command’s name

To check any command’s info info command’s name

Enter first letter of any command & press tab button twice then press y it will show all commands starting with given letter

To exit particular command q

To exit from a command ctrl + z

To exit from a command ctrl + c

To check linux distribution name uname

To see detailed info about linux uname –a –all

To see user name whoami

To see user info in detail who am i

To use linux as root su root

ls –l | more

This will show page by page listed commands

You can’t page up in this command

Only page down is allow

Press page down button or space button to scroll down in above command

ls –l | less

it will show line by line and You can up and down all info line by line

to copy a file cp source /destination path

to copy a file forcefully cp –r source /destination path

to copy and rename file cp r source /destination path/new name of file

Rbl4m